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- Klinische proef NCT07562230
Rapid Construction of Tissue-engineered Skin for Repairing Difficult-to-heal Wounds
Rapid Construction of Tissue-engineered Skin for Repairing Difficult-to-heal Wounds: A Multicenter Real-world Study
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Studietype
Inschrijving (Geschat)
Fase
- Niet toepasbaar
Contacten en locaties
Studiecontact
- Naam: Hu Zhicheng
- Telefoonnummer: 87755766-8265
- E-mail: huzhch5@mail.sysu.edu.cn
Studie Locaties
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Guangdong
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Guangzhou, Guangdong, China
- Werving
- The First Affiliated Hospital of Sun Yat-sen University
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Contact:
- The First Affiliated Hospital of Sun Yat-sen University
- Telefoonnummer: 87755766-8265
- E-mail: huzhch5@mail.sysu.edu.cn
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Kind
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Beschrijving
Inclusion Criteria:
- All-age population
Wounds requiring surgical repair (single area 10-100 cm²): acute wounds (burns, traumatic defects, post-scar resection) OR chronic wounds (diabetic foot ulcers, pressure injuries, vascular ulcers)
Completed wound bed preparation (no necrotic tissue, infection controlled)
Signed informed consent and agreement to use tissue-engineered materials and long-term follow-up
Exclusion Criteria:
- History of allergy to allogeneic/xenogeneic tissue-engineered scaffolds or collagen materials
Severe immunosuppression (HIV/AIDS, long-term immunosuppressant use)
Malignant tumors, uncontrolled systemic infection (CRP > 50 mg/L), or organ failure (Child-Pugh Class C)
Mental illness preventing compliance with treatment or follow-up
Pregnant or lactating women
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Niet-gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Experimenteel: Rapid Tissue-Engineered Skin Group
Rapid intraoperative construction of autologous EpiSCs-loaded scaffold + split-thickness skin graft (one-step or two-step procedure)
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Autologous split-thickness skin (0.15-0.2 mm) is harvested from the donor site at a donor-to-wound area ratio of 1:20-30.
The harvested skin is processed using a specialized cell sorter to isolate autologous epidermal stem cells (EpiSCs) with >93% viability within 30 minutes.
The cell suspension is adjusted to a concentration of ≥1×10⁶ cells/mL and loaded onto a tissue-engineered scaffold via spraying or immersion (3-5 minutes).
The cell-seeded scaffold is then applied to the wound bed.
Depending on wound condition: (1) One-step procedure: scaffold and a split-thickness skin graft (0.15-0.2 mm) are applied simultaneously; (2) Two-step procedure: scaffold is implanted first, followed by split-thickness skin graft at 14±3 days post-primary surgery.
Negative pressure wound therapy (-100 to -125 mmHg) is applied as needed.
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Actieve vergelijker: Traditional Composite Skin Graft Group
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The same tissue-engineered scaffold (without cell loading) is used.
Autologous split-thickness skin graft (0.15-0.2 mm thickness) is harvested.
The acellular scaffold is applied to the debrided wound bed followed by coverage with the split-thickness skin graft.
The surgical procedure, postoperative wound care, negative pressure wound therapy (-100 to -125 mmHg when indicated), and follow-up protocol are identical to those in the experimental arm.
This comparator represents the current standard of care for composite skin grafting in the participating centers.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Complete Wound Healing Rate
Tijdsspanne: At 4 weeks post-surgery
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The percentage of participants achieving complete wound epithelialization (defined as 100% re-epithelialization without drainage or dressing requirements)
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At 4 weeks post-surgery
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Wound Recurrence Rate
Tijdsspanne: 3, 6, 12 months post-surgery
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Incidence of wound recurrence at the healed site
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3, 6, 12 months post-surgery
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Scar Quality Assessment
Tijdsspanne: 4 weeks, 3, 6, 12 months post-surgery
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Scar quality is assessed using the Vancouver Scar Scale (VSS) and the Patient and Observer Scar Assessment Scale (POSAS) at 4 weeks, 3, 6, and 12 months post-surgery.
The VSS total score ranges from 0 to 13, with higher scores indicating worse scar outcome (assessing vascularity, pigmentation, pliability, and height).
The POSAS includes two separate subscales: the Observer Scale (6 items, each scored 1 to 10, total range 6-60) and the Patient Scale (6 items, each scored 1 to 10, total range 6-60).
For both POSAS subscales, higher scores represent worse scar outcome.
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4 weeks, 3, 6, 12 months post-surgery
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Functional Recovery
Tijdsspanne: 6, 12 months post-surgery
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Sweat test for assessment of sweat gland regeneration
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6, 12 months post-surgery
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Mortality Rate
Tijdsspanne: 3, 6, 12 months post-surgery
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All-cause mortality
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3, 6, 12 months post-surgery
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Amputation Rate
Tijdsspanne: 3, 6, 12 months post-surgery
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Incidence of amputation (for chronic wound patients)
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3, 6, 12 months post-surgery
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Healing Trajectory
Tijdsspanne: 1, 2, 3 weeks post-surgery
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Wound healing rate at week 1, 2, 3; and time to complete healing
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1, 2, 3 weeks post-surgery
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Safety Outcome
Tijdsspanne: From day of surgery through 12 months post-surgery
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Safety outcome is the incidence of postoperative complications (including infection, hematoma, and graft failure), adverse events, and serious adverse events, assessed from the day of surgery through study completion, an average of 12 months.
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From day of surgery through 12 months post-surgery
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Medewerkers en onderzoekers
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- 2026P-ZD025
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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